Handcuff lock key



FIG. 1 is a perspective view of my new design for a handcuff lock key;

FIG. 2 is a side elevational thereof;

FIG. 3 is a perspective view of another embodiment of my design;

FIG. 4 is a side elevational view thereof; and

FIG. 5 is an end elevational view thereof.

The ornamental design for handcuff lock key, substantially as shown.